Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
hieu van » hieu va, thien van, lieu va
thanh ve » thanh va, thanh vien, thanh van
hanh ve » hanh vi, hanh va, hanh kem
van lam » van nam
lam xuc » cam xuc, lam duoc
nang xa » nang x, lang xa, nang ma
tu sach » su sach, te sach, tu cach
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
y nang » ky nang, ly nang, v nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) y nang xa hoi. hieu van lam xuc va ((thanh ve) or (hanh ve)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) y nang xa hoi. hieu van lam xuc va ((thanh ve) OR (hanh ve)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) y nang xa hoi. hieu van lam xuc va ((thanh ve) or (hanh ve)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) y nang xa hoi. hieu van lam xuc va ((thanh ve) or (hanh ve)) cuu tre*.